Buggy code:
public class SummaryQueryBuilder { private static String getAggregateSelect ( ) { <START_BUG> return "select<seq2seq4repair_space>" + ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( "<seq2seq4repair_space>li.productCode<seq2seq4repair_space>as<seq2seq4repair_space>code" + ",<seq2seq4repair_space>li.product" ) + ",<seq2seq4repair_space>li.productCategory<seq2seq4repair_space>as<seq2seq4repair_space>category" ) + ",<seq2seq4repair_space>li.dispensingUnit<seq2seq4repair_space>as<seq2seq4repair_space>unit" ) + ",<seq2seq4repair_space>sum(li.beginningBalance)<seq2seq4repair_space>as<seq2seq4repair_space>openingBalance" ) + ",<seq2seq4repair_space>sum(li.quantityReceived)<seq2seq4repair_space>as<seq2seq4repair_space>receipts" ) + ",<seq2seq4repair_space>sum(li.quantityDispensed)<seq2seq4repair_space>as<seq2seq4repair_space>issued" ) + ",<seq2seq4repair_space>sum(li.totalLossesAndAdjustments)<seq2seq4repair_space>as<seq2seq4repair_space>adjustments" ) + ",<seq2seq4repair_space>sum(li.stockInHand)<seq2seq4repair_space>as<seq2seq4repair_space>closingBalance<seq2seq4repair_space>" ) + ",<seq2seq4repair_space>sum(li.quantityApproved)<seq2seq4repair_space>as<seq2seq4repair_space>reorderAmount<seq2seq4repair_space>" ) + ",<seq2seq4repair_space>sum(0)<seq2seq4repair_space>as<seq2seq4repair_space>stockOutRate<seq2seq4repair_space>" ) + "<seq2seq4repair_space>from<seq2seq4repair_space>facilities<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>requisitions<seq2seq4repair_space>r<seq2seq4repair_space>ON<seq2seq4repair_space>r.facilityId<seq2seq4repair_space>=<seq2seq4repair_space>facilities.id<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>requisition_line_items<seq2seq4repair_space>li<seq2seq4repair_space>ON<seq2seq4repair_space>li.rnrId<seq2seq4repair_space>=<seq2seq4repair_space>r.id<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>products<seq2seq4repair_space>ON<seq2seq4repair_space>products.code<seq2seq4repair_space>::text<seq2seq4repair_space>=<seq2seq4repair_space>li.productCode<seq2seq4repair_space>::text<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>vw_districts<seq2seq4repair_space>gz<seq2seq4repair_space>on<seq2seq4repair_space>gz.district_id<seq2seq4repair_space>=<seq2seq4repair_space>facilities.geographicZoneId<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>programs<seq2seq4repair_space>ON<seq2seq4repair_space>r.programId<seq2seq4repair_space>=<seq2seq4repair_space>programs.id<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>requisition_group_members<seq2seq4repair_space>ON<seq2seq4repair_space>facilities.id<seq2seq4repair_space>=<seq2seq4repair_space>requisition_group_members.facilityId<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>requisition_groups<seq2seq4repair_space>ON<seq2seq4repair_space>requisition_groups.id<seq2seq4repair_space>=<seq2seq4repair_space>requisition_group_members.requisitionGroupId<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>requisition_group_program_schedules<seq2seq4repair_space>ON<seq2seq4repair_space>requisition_group_program_schedules.programId<seq2seq4repair_space>=<seq2seq4repair_space>programs.id<seq2seq4repair_space>" ) + "<seq2seq4repair_space>AND<seq2seq4repair_space>requisition_group_program_schedules.requisitionGroupId<seq2seq4repair_space>=<seq2seq4repair_space>requisition_groups.id<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>processing_schedules<seq2seq4repair_space>ON<seq2seq4repair_space>processing_schedules.id<seq2seq4repair_space>=<seq2seq4repair_space>requisition_group_program_schedules.scheduleId<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>processing_periods<seq2seq4repair_space>ON<seq2seq4repair_space>processing_periods.id<seq2seq4repair_space>=<seq2seq4repair_space>r.periodId<seq2seq4repair_space>" ) ; <END_BUG> } private static String getAggregateGroupBy ( ) { } private static String getDisaggregatedSelect ( ) { } private static String getDisAggregatedGroupBy ( ) { } public static String getQuery ( Map params ) { } private static String getPredicates ( Map params ) { } }

Fix:
return "select<seq2seq4repair_space>" + ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( "<seq2seq4repair_space>li.productCode<seq2seq4repair_space>as<seq2seq4repair_space>code" + ",<seq2seq4repair_space>li.product" ) + ",<seq2seq4repair_space>li.productCategory<seq2seq4repair_space>as<seq2seq4repair_space>category" ) + ",<seq2seq4repair_space>li.dispensingUnit<seq2seq4repair_space>as<seq2seq4repair_space>unit" ) + ",<seq2seq4repair_space>sum(li.beginningBalance)<seq2seq4repair_space>as<seq2seq4repair_space>openingBalance" ) + ",<seq2seq4repair_space>sum(li.quantityReceived)<seq2seq4repair_space>as<seq2seq4repair_space>receipts" ) + ",<seq2seq4repair_space>sum(li.quantityDispensed)<seq2seq4repair_space>as<seq2seq4repair_space>issues" ) + ",<seq2seq4repair_space>sum(li.totalLossesAndAdjustments)<seq2seq4repair_space>as<seq2seq4repair_space>adjustments" ) + ",<seq2seq4repair_space>sum(li.stockInHand)<seq2seq4repair_space>as<seq2seq4repair_space>closingBalance<seq2seq4repair_space>" ) + ",<seq2seq4repair_space>sum(li.quantityApproved)<seq2seq4repair_space>as<seq2seq4repair_space>reorderAmount<seq2seq4repair_space>" ) + ",<seq2seq4repair_space>sum(0)<seq2seq4repair_space>as<seq2seq4repair_space>stockOutRate<seq2seq4repair_space>" ) + "<seq2seq4repair_space>from<seq2seq4repair_space>facilities<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>requisitions<seq2seq4repair_space>r<seq2seq4repair_space>ON<seq2seq4repair_space>r.facilityId<seq2seq4repair_space>=<seq2seq4repair_space>facilities.id<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>requisition_line_items<seq2seq4repair_space>li<seq2seq4repair_space>ON<seq2seq4repair_space>li.rnrId<seq2seq4repair_space>=<seq2seq4repair_space>r.id<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>products<seq2seq4repair_space>ON<seq2seq4repair_space>products.code<seq2seq4repair_space>::text<seq2seq4repair_space>=<seq2seq4repair_space>li.productCode<seq2seq4repair_space>::text<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>vw_districts<seq2seq4repair_space>gz<seq2seq4repair_space>on<seq2seq4repair_space>gz.district_id<seq2seq4repair_space>=<seq2seq4repair_space>facilities.geographicZoneId<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>programs<seq2seq4repair_space>ON<seq2seq4repair_space>r.programId<seq2seq4repair_space>=<seq2seq4repair_space>programs.id<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>requisition_group_members<seq2seq4repair_space>ON<seq2seq4repair_space>facilities.id<seq2seq4repair_space>=<seq2seq4repair_space>requisition_group_members.facilityId<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>requisition_groups<seq2seq4repair_space>ON<seq2seq4repair_space>requisition_groups.id<seq2seq4repair_space>=<seq2seq4repair_space>requisition_group_members.requisitionGroupId<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>requisition_group_program_schedules<seq2seq4repair_space>ON<seq2seq4repair_space>requisition_group_program_schedules.programId<seq2seq4repair_space>=<seq2seq4repair_space>programs.id<seq2seq4repair_space>" ) + "<seq2seq4repair_space>AND<seq2seq4repair_space>requisition_group_program_schedules.requisitionGroupId<seq2seq4repair_space>=<seq2seq4repair_space>requisition_groups.id<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>processing_schedules<seq2seq4repair_space>ON<seq2seq4repair_space>processing_schedules.id<seq2seq4repair_space>=<seq2seq4repair_space>requisition_group_program_schedules.scheduleId<seq2seq4repair_space>" ) + "<seq2seq4repair_space>inner<seq2seq4repair_space>join<seq2seq4repair_space>processing_periods<seq2seq4repair_space>ON<seq2seq4repair_space>processing_periods.id<seq2seq4repair_space>=<seq2seq4repair_space>r.periodId<seq2seq4repair_space>" ) ;